You should look into water/methanol injection. This can lower your EGT's significantly and works very well when running boost. There's people who use 50/50 mixtures,and some that use only water. Water alone actually lowers EGT in diesel more if I recall correctly, where water/meth will add a...
Ya that's interesting some steam engines were originally reverse uniflow.
It's actually better to use 4 intake valves per cylinder with 2 cams or 2 valves with one cam. Maybe a solenoid actuated valve could work good with an RU engine. Since the pressure differential can open and close the...
For waste heat recovery I think scroll expanders with an ORC cycle hold a lot of potential. This company is doing a lot with scroll expanders/compressors
Air Squared :
[link AirSquared.com]Link[/url]
The clock spring just illustrates the concept; you are correct they would perform poorly. Having valves with no mechanical actuation is interesting to me, but a RU engine with a camshaft would probably make the most sense. It would still have all the other advantages still. I wonder if a single...
Ok, there must've been some kind of glitch. I posted this last night but somehow it was gone today. Took me a while to finally get back into my account.
There will be pumping loses with scavenging. 4s engines also have pumping loses; I'd have to research it more to find out which one has higher...
Also, in regards to conspiracy theories. Was the GM EV1 incident a conspiracy? Didn't California sue GM over that? Actually 1 million dollars of that went to the California Energy Commission which they used to start CleanTech Institute, and train engineers and mechanics to be certified EV Techs...
I am talking about just making a RU CI engine with a conventional crankshaft; there's just too many issues to try to combine into both designs. So could we please focus on just the RU and not the cam engine anymore please?
The Commer TS3 has too many moving parts, too much friction, and...
I think the caminez engine would have less problems with dynamic loading if it ran on the RU 2 stroke cycle. Just because a motor failed almost one hundred years ago doesn't mean it can't work with a modern makeover. There were so many new motors being built back then, they just chose the one...
Also, keep in mind; the fairchild engine was originally designed and built in 1927, thats 90 year's ago! Things have changed enormously since then in regards to new higher strength materials and the more we know about engine design and efficiency now. Just the fact that they were able to make...
LIM Technology did a study and proved valve bounce to be negligible. Here is a short summary of the reports findings:
"VALVE BOUNCE
Questions raised by knowledgeable people regarding valve bounce were answered in 2006, with the publication of the report by Douglas M. Baker, Ph.D. Dr. Baker...
Well there are a few advantages a camshaft can have over a crankshaft. Cam engines don't have the long dwell time at tdc and bdc like crank engines do, which means a more efficient transfer of energy, and it's better for emissions too. If you consider that 4 pistons (or more) can turn one...
I'm mainly trying to determine the feasibility of the concept and design challenges to make this engine work. This is a rough frame, but the main goal is to make a 2 stroke cam engine with minimal parts. If something like this worked it would have lots of applications where high...
Here is some info on this Fairchild-Caminez cam engine that I think has some potential for a modern make-over.
The Fairchild-Caminez 447 engine was a four-cylinder air-cooled radial intended for aircraft useage. It was designed by Harold Caminez, who had previously worked in the Engine Design...
I wanted to post this link to a thread talking about this same issue:
Link
I wanted to note in regards to that thread that LNG does not contain mercaptans. This is why a methane detection monitor is required for vehicles using LNG.
Thank you for that, i'm reviewing the NFPA 52, lot's of information to digest. The main issues with the tanks is they were not originally built for this purpose. If I can't make the tank and connections up to code, or at least close to it, I won't go forward with this project until I know my...
I've also sketched some CVT transmissions that utilize magnetic gears and have no wearing clutch parts. The magnomatics design is pretty sweet, it would be awesome to have an ultra high speed electric motor with their design, it's power density would be huge and it would be great for racing...
I'm still trying to find the specs for the tank, I'll post it when I find them. I'm assuming the inner tank lining is stainless steel, once I get the specs I should know; anyone have any insight on this? I've looked at a chart that shows the psi required to hold LNG at a given temperature. If I...
